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25 lines
615 B
LLVM
25 lines
615 B
LLVM
; The register allocator can commute two-address instructions to avoid
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; insertion of register-register copies.
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; Make sure there are only 3 mov's for each testcase
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; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 -x86-asm-syntax=intel | grep 'mov ' | wc -l | grep 6
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target triple = "i686-pc-linux-gnu"
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%G = external global int
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declare void %ext(int)
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int %add_test(int %X, int %Y) {
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%Z = add int %X, %Y ;; Last use of Y, but not of X.
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store int %Z, int* %G
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ret int %X
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}
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int %xor_test(int %X, int %Y) {
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%Z = xor int %X, %Y ;; Last use of Y, but not of X.
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store int %Z, int* %G
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ret int %X
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}
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